Mathematics

Kobe

19 December, 11:03

Complete the missing parts of the paragraph proof.

We are given an n-gon, which has n sides and

n vertices. If we choose one of the vertices, we can

draw diagonals. These diagonals form

triangles. The sum of the interior angle measures of a

triangle is degrees. 1-2 triangles would have

an interior angle measure sum of

Therefore, the sum of the measures of the interior

angles of an n-gon is 180 (n2 - 2)